Feed-table for rolling-mills



(-No Model.'\ 4 Sheets-'Sheet 1.

S..V.-HUBER.

FEED TABLE FOR ROLLING MILLS. No. 588,225. Patented Aug. 17,1897.

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S. V. HUBER.

FEED TABLEFOR ROLLING MILLS.

Patented Aug. 17,1897

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4 Sheets-Sheet 8. S. V.- HUBER. FEED TABLE FOR ROLLING MILLS.

Patented Aug. 17, 1897,

(No Model.)

(No Model.) 4 Sheets-Sheet 4.

S. V. HUBER. FEED TABLE FOR ROLLING MILLS.

Patented Aug. 17,1897.

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SIGMUND V. HUBER, OF YOUNGSTOWN, OHIO.

FEED-TABLE FOR ROLLING-MILLS.

SPECIFICATION forming part of Letters Patent No. 588,225, dated August 17, 1897.

' Application filed Deoember28, 1896. Serial No. 617,176. (No model.)

To all whom it may concern:

Be it known that I, SIeMUND V. HUBER, a citizen of the United States, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented or discovered I certain new and useful Improvements in Feed-Tables for Rolling-Mills, of which improvements the following is a specification.

The invention describedherein relates to certain improvements in rolling-mills, and has for its object the construction and arrangement of feed-tables whereby the article may be fed from one side into a pass between the lower and middle rolls of a three-high mill and then fed from the opposite sideinto a pass between the-middle and upper rolls in the construction. and. combination, substan-- tially as hereinafter described and claimed.-

In the'accompanying drawings, forming a part of this specification,.Figure 1 isa top plan View showing the rollers table of my improved .mill. Fig.2 is .a similar View of the catchers table. Fig. 3 is a side elevation, on an enlarged scale, of the rolls and portions of the tables adjacent thereto. Fig. 3 is a side elevation of the rear portion of the rollers table. 7 larged scale, of the rollers table; and'Fig. 5 is a transverse sectional elevation, the plane of sectionbeingindicated by the lineVV, Fig. 3.

In .the form of mill shown. four passes are I formed inthelower and middle rolls and are Fig. 4; is a top plan View, on an en &, adapted to'engage with corresponding pinions 5 on the shaft 6. A shaft 7 is supported transverse of the frame near its front end by bearings 8, secured to the under side of the frame, as shown in Figs. 3 and5. On this shaftare secured arms 9, provided at their outer ends with shoes 10, adapted when the arms are raised to bear against the sides of the frame and by their continued movement to raise the same. The arms 9 are connected by rods 11 to arms 12 on the shaft 13, which is mounted in suit-able bearings on foundation-blocks 14. The shaft 13 has keyed thereto an arm 15, having its free end conne'cted by rods 16 to the piston-rod of fiuid-pressure'cylinders 17.

The mechanism thus far described will effect the vertical movement of the table. I11 order to shift the billet or other article laterally on this table, shaft '18 is .supported by bearings. 19. along one side of the table, and

on'ithis' shaft are keyed a series of arms 20, intermediate of .thefe'ed-rollers, and ailike series of arms 20 are pivotally supported by pins l8 falo'ng the opposite side of the table, as shown in Figs. 3 and 3. A series of bars 21 are secured to the upper ends of these arms, and the upper sides of these bars are provided with a series of lugs 22, on which the longitudinal guide-strips 23 23, &c., are bolted. These guide-strips are arranged a distance apart corresponding approximately to the width of the passes in the reducing-rolls. On

the shaft 18 is keyed an arm 24, having its free end-connected by a rod 25 to an arm 26 on the shaft 13, so that by therotation ofthe shaft 13 the table is not only raised and lowered, but the guide-strips are moved laterally to correspondingly shift any article lying on the rollers 3 between adjacentguide-strips.

' In order to regulate the movements of the table and prevent jars thereto, a cylinder 27, containing a suitable fluid and having its ends connected by a valved pipeorfpassage .28, is located under the front end of the table, and to the table is secured the end of the piston-rod 29. The cylinder and piston are so proportioned that when the table is at the desired limit of its downward movement the piston will rest against the end of the cylinder and support the table.

As it is desired to effect the lateral movements of the guide-strips 23 when the table is in its lowest position, the lifting-rods 11 are shorter than the shifting-rod by an amount equal to the movement of the arm 2% necessary to effect the desired lateral movement of the guide-strips. Vhen the table is in its lowest position and the guide-strips are in normal position, as shown in Figs. 3, 4c, and 5, the shoes 10 will stand a short distance away from the frame. As the shaft 13 is rofated the arm 2i will be raised to shift the guide-strips, and this movement of the arm 24 will continue untilthe shoes 10 bear against the frame, after which the table will be lifted and carry up with it the arm 24:, so that the latter will not thereafter be moved relative to the table. As the table is lowered the arm 24: will be relatively stationary until the downward movement of the table is checked. The continued movement of the shaft 13 after the table has been stopped will draw the shoes away from the table and will shift the arm 24: to return the guide-strips to normal position.

The catchers table, as regards its frame 1 and feed-rollers 3, is constructed similarly to the rollers table hereinbefore described and is pivotallymounted at its rear end upon a suitable supporting-block. In orderto raise the front end of the catchers table, lugs secured to the sides of the frame, are connected by rods 30 to the outer ends of arms 31, keyed to the shaft An arm 33 is also keyed to this shaft and has its outer end connected by a rod 34E to the outer end of arm 15 on shaft 13. As hereinbefore described, the arm 15 has a certain range of movement before it becomes operative to lift the rollers table, and as both tables should be lifted simultaneously the rod 3% is provided with a longitudinal slot 34, where it is connected with the arm 33, so as to permit a longitudinal movement of said rod corresponding to the lost movement of the shoes 10 before it becomes operative to shift the arm 33 and raise the catchers table.

The movements of the catchers table are controlled by a fluid-pressure cylinder 27, having its piston-rod 29 connected. to the frame of the table and having its opposite ends in communication by a valved pipe or passage 28".

A series of guide-strips 35 are secured to lugs projecting up from the cross-bars 36, arranged intermediate of the feed-rollers 3 and bolted to the sides of the frame of the table. These guide-strips 35 are arranged longitudinally of the table in line, or approximately in line, with the ends of the passes in the reducing-rolls.

In operating my improved mill the billet or other article is fed by the table A, which is of the ordinary construction, from the furnace between the first and second guidestrips 23 and 23 on the rollcrs table and by the latter into the first pass between the lower and middle rolls of the mill. As soon as the article has passed wholly onto the catchers table the fluid-pressure cylinder 17 is operated so as to first shift the guide-strips on the rollers table laterally, thereby bringing the second and third strips 23 and 23 into line with the ends of the first and second passes, and then to raise both the rollers and catchers tables. By reversing the rotation of the feed-rollers of both tables the article is returned through the second pass of the reducing-mill, which is located in the same vertical plane as the first pass, and emerges from the second pass between the second and third strips 23 and 23 of the transfer mechanism. The fluid-pressure cylinder is again operated, affecting first the lowering of both tables and then the shifting of the transfer mechanism until the second and third strips 23 and 23 of said transfer mechanism are in line with the ends of the third pass between the lower and middle rolls. The feed-rollers of both tables are again reversed and the article fed through the third pass and onto the catchers table. These operations are continued until the article has passed through the several passes in the reducing-rolls. As the article emerges from the eighth or last pass, which is between the upper'and middle rolls, it is received by a trough 3'7, which is supported on, or approximately 011, the samelevel as the eighth pass by means of arms 38, keyed to the shaft 39, the latter being mounted in suitable bearings on standards 40. As soon as the article has passed wholly out of the last reducing-pass the shaft 30 is rotated, thereby shifting the trough 37 in the arc of a circle until the article will drop from the trough onto the skids 41, which are suitably supported and have their outer ends projecting between the feed-rollers 42 of the feed-table B. This table is arranged in such relation to the bull-head or finishing-rolls C that an article deposited thereon will be fed in between such rolls.

It will be readily understood by those skilled in the art that as soon as the rollers table and the transfer mechanism have been shifted in the manner described, so as to feed the first billet into the third pass, which is between the lower and middle rolls, another billet can be fed onto the rollers table between the first and second guide-strips 23 23 of the transfer mechanism. New billets can be fed in a similar manner into the first pass of the rolls as soon as the preceding billet is in line with and ready to be fed into the third pass of the red ncing-rolls.

I claim herein as my invention- 1. The combination of a vertically-movable frame, positively-driven feed-rollers mounted in said frame, transfer mechanism for shifting an article laterally on said rollers, and a substantially as set forth.

3. The combination of reducing-rolls I frames pivotally mounted .on opposite sides of said rolls positively-driven feed-rollers mounted in said frames, "a transfer mechanism for shifting an article laterally on the rollers of one frame and mechanism for raising and lowering the frames simultaneously and for shifting the transfer mechanism, substantially as set forth.

In testimony'whereof I have hereunto set 20 my hand.-

SIGMUND V. HUBER.

W'itnesses:

F. E. GAITHER, DARWIN S. WOLOOTT. 

